[ClusterLabs] stonith device locate on same host in active/passive cluster

[Albert Weng]

Hi Marek,

thanks for your quickly responding.

According to you opinion, when i type "pcs status" then i saw the following
result of fence :
ipmi-fence-node1    (stonith:fence_ipmilan):    Started cluaterb
ipmi-fence-node2    (stonith:fence_ipmilan):    Started clusterb

Does it means both ipmi stonith devices are working correctly? (rest of
resources can failover to another node correctly)

should i have to use location constraint to avoid stonith device running on
same node ?
# pcs constraint location ipmi-fence-node1 prefers clustera
# pcs constraint location ipmi-fence-node2 prefers clusterb

thanks a lot

On Tue, May 2, 2017 at 4:25 PM, Marek Grac <mgrac at redhat.com> wrote:

> Hi,
>
>
>
> On Tue, May 2, 2017 at 3:39 AM, Albert Weng <weng.albert at gmail.com> wrote:
>
>> Hi All,
>>
>> I have created active/passive pacemaker cluster on RHEL 7.
>>
>> here is my environment:
>> clustera : 192.168.11.1
>> clusterb : 192.168.11.2
>> clustera-ilo4 : 192.168.11.10
>> clusterb-ilo4 : 192.168.11.11
>>
>> both nodes are connected SAN storage for shared storage.
>>
>> i used the following cmd to create my stonith devices on each node :
>> # pcs -f stonith_cfg stonith create ipmi-fence-node1 fence_ipmilan parms
>> lanplus="ture" pcmk_host_list="clustera" pcmk_host_check="static-list"
>> action="reboot" ipaddr="192.168.11.10" login=adminsitrator passwd=1234322
>> op monitor interval=60s
>>
>> # pcs -f stonith_cfg stonith create ipmi-fence-node02 fence_ipmilan parms
>> lanplus="true" pcmk_host_list="clusterb" pcmk_host_check="static-list"
>> action="reboot" ipaddr="192.168.11.11" login=USERID passwd=password op
>> monitor interval=60s
>>
>> # pcs status
>> ipmi-fence-node1                     clustera
>> ipmi-fence-node2                     clusterb
>>
>> but when i failover to passive node, then i ran
>> # pcs status
>>
>> ipmi-fence-node1                    clusterb
>> ipmi-fence-node2                    clusterb
>>
>> why both fence device locate on the same node ?
>>
>
> When node 'clustera' is down, is there any place where ipmi-fence-node*
> can be executed?
>
> If you are worrying that node can not self-fence itself you are right. But
> if 'clustera' will become available then attempt to fence clusterb will
> work as expected.
>
> m,
>
> _______________________________________________
> Users mailing list: Users at clusterlabs.org
> http://lists.clusterlabs.org/mailman/listinfo/users
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org
>
>


-- 
Kind regards,
Albert Weng

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
不含病毒。www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clusterlabs.org/pipermail/users/attachments/20170502/b5dd37bb/attachment-0003.html>